This page lists all non-royal peers who held extant titles between the years 1740 and 1749.
| Title |
Holder |
Date gained |
Date lost |
Notes |
| Peerage of England |
| Duke of Cornwall (1337) |
Frederick, Prince of Wales |
1727 |
1751 |
|
| Duke of Norfolk (1483) |
Edward Howard, 9th Duke of Norfolk |
1732 |
1777 |
|
| Duke of Somerset (1547) |
Charles Seymour, 6th Duke of Somerset |
1678 |
1748 |
Died |
| Algernon Seymour, 7th Duke of Somerset |
1748 |
1750 |
|
| Duke of Cleveland (1670) |
William FitzRoy, 3rd Duke of Cleveland |
1730 |
1774 |
|
| Duke of Richmond (1675) |
Charles Lennox, 2nd Duke of Richmond |
1723 |
1750 |
|
| Duke of Grafton (1675) |
Charles FitzRoy, 2nd Duke of Grafton |
1690 |
1757 |
|
| Duke of Beaufort (1682) |
Henry Scudamore, 3rd Duke of Beaufort |
1714 |
1745 |
Died |
| Charles Somerset, 4th Duke of Beaufort |
1745 |
1756 |
|
| Duke of St Albans (1684) |
Charles Beauclerk, 2nd Duke of St Albans |
1726 |
1751 |
|
| Duke of Bolton (1689) |
Charles Powlett, 3rd Duke of Bolton |
1722 |
1754 |
|
| Duke of Leeds (1694) |
Thomas Osborne, 4th Duke of Leeds |
1731 |
1789 |
|
| Duke of Bedford (1694) |
John Russell, 4th Duke of Bedford |
1732 |
1771 |
|
| Duke of Devonshire (1694) |
William Cavendish, 3rd Duke of Devonshire |
1729 |
1755 |
|
| Duke of Marlborough (1702) |
Charles Spencer, 3rd Duke of Marlborough |
1733 |
1758 |
|
| Duke of Rutland (1703) |
John Manners, 3rd Duke of Rutland |
1721 |
1779 |
|
| Duke of Montagu (1705) |
John Montagu, 2nd Duke of Montagu |
1709 |
1749 |
Died, title extinct |
| Peerage of Scotland |
| Duke of Hamilton (1643) |
James Hamilton, 5th Duke of Hamilton |
1712 |
1743 |
Died |
| James Hamilton, 6th Duke of Hamilton |
1743 |
1758 |
|
| Duke of Buccleuch (1663) |
Francis Scott, 2nd Duke of Buccleuch |
1732 |
1751 |
|
| Duke of Queensberry (1684) |
Charles Douglas, 3rd Duke of Queensberry |
1711 |
1778 |
|
| Duke of Gordon (1684) |
Cosmo Gordon, 3rd Duke of Gordon |
1728 |
1752 |
|
| Duke of Argyll (1701) |
John Campbell, 2nd Duke of Argyll |
1703 |
1743 |
Died |
| Archibald Campbell, 3rd Duke of Argyll |
1743 |
1761 |
|
| Duke of Atholl (1703) |
James Murray, 2nd Duke of Atholl |
1724 |
1764 |
|
| Duke of Douglas (1703) |
Archibald Douglas, 1st Duke of Douglas |
1703 |
1761 |
|
| Duke of Montrose (1707) |
James Graham, 1st Duke of Montrose |
1707 |
1742 |
Died |
| William Graham, 2nd Duke of Montrose |
1742 |
1790 |
|
| Duke of Roxburghe (1707) |
John Ker, 1st Duke of Roxburghe |
1707 |
1741 |
Died |
| Robert Ker, 2nd Duke of Roxburghe |
1741 |
1755 |
|
| Peerage of Great Britain |
| Duke of Kent (1710) |
Henry Grey, 1st Duke of Kent |
1710 |
1740 |
Died, title extinct |
| Duke of Ancaster and Kesteven (1715) |
Peregrine Bertie, 2nd Duke of Ancaster and Kesteven |
1723 |
1742 |
Died |
| Peregrine Bertie, 3rd Duke of Ancaster and Kesteven |
1742 |
1778 |
|
| Duke of Kingston-upon-Hull (1715) |
Evelyn Pierrepont, 2nd Duke of Kingston-upon-Hull |
1726 |
1773 |
|
| Duke of Newcastle (1715) |
Thomas Pelham-Holles, 1st Duke of Newcastle |
1715 |
1768 |
|
| Duke of Portland (1716) |
William Bentinck, 2nd Duke of Portland |
1726 |
1762 |
|
| Duchess of Kendal (1719) |
Melusine von der Schulenburg, Duchess of Kendal |
1719 |
1743 |
Died, title extinct |
| Duke of Manchester (1719) |
Robert Montagu, 3rd Duke of Manchester |
1739 |
1762 |
|
| Duke of Chandos (1719) |
James Brydges, 1st Duke of Chandos |
1719 |
1744 |
Died |
| Henry Brydges, 2nd Duke of Chandos |
1744 |
1771 |
|
| Duke of Dorset (1720) |
Lionel Sackville, 1st Duke of Dorset |
1720 |
1765 |
|
| Duke of Bridgewater (1720) |
Scroop Egerton, 1st Duke of Bridgewater |
1720 |
1745 |
Died |
| John Egerton, 2nd Duke of Bridgewater |
1745 |
1748 |
Died |
| Francis Egerton, 3rd Duke of Bridgewater |
1748 |
1803 |
|
| Duke of Cumberland (1726) |
Prince William, Duke of Cumberland |
1726 |
1765 |
|
